It's not unusual for John Cardinal to be hauled out of a warm bed on a cold night in Algonquin Bay to investigate a murder. And at first this dead body, sprawled in the parking lot of Motel 17, looks pretty run of the mill: the corpse has a big bootprint on his neck, and the likely suspect is his lover's outraged husband. But the lover has gone missing. And then Delorme, following a hunch, locates another missing woman, a senator's wife from Ottawa, frozen in the ruins of an abandoned hotel way back in the woods. Spookily, she was chained up and abandoned wearing a new winter parka and boots, with a thermos beside her--as if her murderer was giving her a whisper of a chance at survival.      Neither Delorme nor Cardinal can imagine where their investigation will lead: into a decades-old injustice committed in the high Arctic; into the swingers' world inhabited by an ex-rock star who owns a pub in Algonquin Bay as well as private members' clubs in Toronto and Ottawa; into the insecurity that afflicts Delorme the woman and the cop; and into the deep bond between Delorme and Cardinal, which is at real risk of coming undone.      In Until the Night , Giles Blunt outdoes himself, creating a masterpiece of crime fiction that will not only haunt his fans and readers, but delight and amaze them too.